Proxmox does not keep track of logins to VMs. There are many guides on the internet about resetting the root password for Linux machines that also work for VMs.
Proxmox does not keep track of logins to VMs. There are many guides on the internet about resetting the root password for Linux machines that also work for VMs.
You can check afterwards by looking at the logs inside the VM. If someone else logged in, they cannot be trusted. Maybe setup logging to a remote system to prevent tampering with the logs in the future?
Maybe I'm not understanding your question correctly? Can you explain the situation a bit more and elaborate about why you need the last login?